SpringSecurityContext is not passed when app is working in pods GKE

Question

I need to get a UserDetails in servlet filter. So I'm getting it from SecurityContextHolder.getContext().getAuthentication() like this -

  @Override
  public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws ServletException, IOException {
     UserDetails userDetails = (UserDetails) SecurityContextHolder.getContext().getAuthentication()
        .getPrincipal();
...
}

Locally the user is fetched from the Security context, but when deploying the app to GKE the SecurityContextHolder.getContext().getAuthentication() is null.

I've tried to configure SecurityContextHolder to MODE_INHERITABLETHREADLOCAL like this, but it didn't help

@Configuration
public class SecurityContextHolderConfig {
  public SecurityContextHolderConfig() {
    SecurityContextHolder.setStrategyName(SecurityContextHolder.MODE_INHERITABLETHREADLOCAL);
  }
}

still SecurityContext is not passed to the Filter in a pod. (app packaging is WAR) configuration - Spring oauth2-client with JWT authentication (in the header)